exscale – Implements scaling of the 'cmex' fonts

This pack­age im­ple­ments scal­ing of the math ex­ten­sion font cmex.
If this pack­age is used the site needs scaled ver­sions of the font
cmex10 in the sizes 10.95pt, 12pt, 14.4pt, 17.28pt, 20.74pt,
and 24.88pt (cor­re­spond­ing to stan­dard mag­steps us­ing
\mag­stephalf, and \mag­step1 through
\mag­step5). Ad­di­tion­ally cmex vari­ants for the
sizes 7pt to 9pt are nec­es­sary. Th­ese fonts are part of the
AMS font pack­age.